Is my wifi card going bad?

I've been having trouble with my wifi for a few weeks now. I have 100 mb/s from my ISP, but I only get bursts of speed every now and then. Others on my network aren't having any of the issues that I am.

I have a Intel Dual Band Wireless-AC 7260. It's about 5 years old. I've been using ping -n 20 8.8.8.8 to measure my packet loss which is anywhere between 10-25%. While others on the network, wired or wireless, are getting 0% packet loss.

Is this a sign that my wireless card is going bad and should be replaced?

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